1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a21345b44eaebd4b69a9f6c05618c7b2b2d618f08fe77238edc3cf8591bc8f5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58d0d388-bb82-431c-8834-b6c3441dc388.json and https://artists.proofprofile.net/proofs/artist/58d0d388-bb82-431c-8834-b6c3441dc388.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
多情城市 (民視八點檔《多情城市》片頭曲)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ca4fc2bdec6e1aa14b9e7a46c2298306bfb2f159b8feb4e1ca48a7d629926. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4031dfead7a66f70244095ee3f93f51df721884241dc7a2bd70fecd611e500b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccc4f2f0b989f654088fb1649db405d09a736fac8fc77af365c36dd00170e69. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8183ae5cd737ef01ac8e619453a2b85722f852f59fd98a4eeaf71c9620eaa92a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:36:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3500214e47995d58711e14e4cf3c021267970785b71ca56994fb816704e26937. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a00e6a28bac1f0444d268709e1ff9bab0d344ee663c693b42e875ed77c48c3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43860584786006b7462d0ae3722b5abf9c57034130df2ea1124582c8ed49ad00. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8bd1845d63065247167a7cc45a0210378d756812df9c7ded4a6edcc4a4384c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320e9cdeb1f26ca463f5627893ddc410ea06891143596aa4ccd9ee199b6e7f46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbd4b23fc8368012301e2f4550c5c0672eac5f01dc95de7e41528f150779b95. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8278a4e3d9bccf08d32902e54dedb319281dbbb7a0b4c87d790bd6fccf89b5e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412625e4e18b071c8c56cb34afeca7c1cdb26fa8f4e1d857e7e76693aa35b6cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000033.
歹物仔緊閃 (三立戲劇《戲說台灣》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329530ac686af41ae306c15f7d6d0fd5695e4342f663687dbfeb345e8bcbe77. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800025.
你一直踮阮心肝 (民視八點檔《多情城市》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c99c1dc6c0830ca48c60ada33d16a2b4555f0cbe7dd719fa7b28a9ebde4500. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000041.
感動的心聲 (民視八點檔《愛的榮耀》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc61d84b650db8f975a0217aa696a6bedee454742d552c34870d7dbabd3af54. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:19:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f481cd8f63fd42f289ce2b9aad272bf8c30aea9585faaae37a1e767e2f5495e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952400014.
上愛彼个人 (民視戲劇《黃金歲月》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f99dae8845db0d6c0df6554c5c8ac90cadd283dd85f93951ec37a3467644b5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcec6ca3ba6bd3b1b900c430b3f158dc0ab577c9e31f282b5ce750c0a0fbc32. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8ff6fc23c8b9f227ab80bd29c0d0244a24aaff9f8b14e12871eeed7d475cca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b696aaf7fb4029812c65fed625eef380269a22e0f39d0e7610aec6bde4fcc17. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec59bdd534d402fbfbb514e5501805be1eb28224db6ea2065e41c93ed949eec. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800043.
聽雨聲 (三立八點檔《金家好媳婦》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376f4b54ab8d748cc0bc0f33385511fc7bfabcd39b5803c43d0910d1338b3179. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf26fb2a64e8c14a5394ab520fcdf08d1585d7122d246b8c50a1c0bedcf19fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448c4c5584594bbb4850869ce5da5533cc53698271a32d053ceff0fb9962eb5d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba89862a975e382d03c05f22b012fcb81165672a76faecfc71a4ddce6ed2ee3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9ccc70edca609f66bc27a1cc1b29e91fd44f48e67afa476de0d14670829446. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT951600040.
咱的故事 (民視八點檔《市井豪門》片頭曲) [feat. 郭忠祐]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609af33da24f68aa6be4fbfa3090bd40d64875de3d94c6ab41e95564fb381715. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2da7fd6232fa2e0af95b7d2ae2c766a3d59bcb94184a1234ef3b35dd3a72e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec16214af4857208cc767212b195e625068cffcfca374b6cc99f28f8d6090d80. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952100033.
幸福的寄望 (民視八點檔《多情城市》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd582692206131639974d7996999a333f17a1528512326831648f8251ae3c47de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7901c844d94597da711fb07ff7aaf7a2ae25803e03b15d1e9202d9dccb2216a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1012c33c7521245b107ed9194343810c2614db804010078e2f40274f2c2797. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWT952000051.